#include<stdio.h>
#include<string.h>
//iscntrl
//issipace
//isdigit
//islower
//issupper
//isalpha
//isalnum
//ispinct
//isgraph
//isprint
int main()
{
	int a= isspace(' ');
	printf("%d\n",a);
	
	int b =isdigit('x');
	printf("%d\n",b);
	
	return 0;
}
